Loss in Iran will lead to loss of control over the middle east. Then that will lead to loss of ability to continue supporting Ukraine, which will lead to the collapse (or at least dramatic reform) of the EU...
That will lead to the end of the American Empire and the dollar as world reserve currency, which will lead to the 2nd American Civil War.
All that said, there's light at the end of the tunnel for most Americans because the main street economy will be much better off without the empire milking it for everything it's got in order to pay off everyone that needs to be paid off to keep the shitty system afloat.
